I'm sorry if this comes off as vapid, hell feel free to tell me to go fuck myself if you want, but doubting your decision on a name will always lead to disappointment. Pick a name that you like for any reason you like, and afterwards don't keep shopping around for names, be proud of the one you have, it's as valid as you are.
Anxiety do be a bitch like that, but in the end it's just intrusive thoughts. You're gonna have to disregard them, and have confidence that the choice you're making is a correct one. Also I understand that's a lot easier said than done, but from my own experience it's really the best advice I got, and I can say anxiety's done a lot more harm than good in my own life. Maybe it don't mean shit coming from a stranger, but I believe you can do it.